Tuesday, August 7, 2012

ScienceDaily (July 16, 2012) — At 130 million years old, the rainforests of Southeast Asia are the oldest in the world and home to thousands of plant and animal species, some endemic to these forests. The rainforests also play important roles in modulating regional rainfall as well in the global carbon cycle.

However, since the 1960s, increased warming in the Indian Ocean and frequent El Niño events have reduced rainfall in the region by approximately 1 percent per decade. Further, the Intergovernmental Panel for Climate Change predicts that over the 21st century, Southeast Asia will experience higher land temperatures, more droughts, and increased seasonality -- wet seasons during the fall will get wetter, and dry seasons during the spring will get drier. However, few studies in the past have investigated how trees in the southeastern Asian rainforests respond to droughts and climate change.

In a new study, Kumagai and Porporato combine extensive field observations, historical records, and global climate models to investigate the potential impact of rainfall shifts and droughts on tree mortality in the Bornean rainforests of Southeast Asia. They find that as El Niño events become more frequent in the future in response to warming in the tropical oceans, even the species of trees that can adapt to drought conditions will be at increased risk of dying off. The small number of species that cannot adapt well to drought conditions will be at even greater risk of dying .
Their study has implications for predictions of ecological changes, regional rainfall patterns, and global climate as well as direct applications for policies aimed at reducing additional human impacts on these ecosystems, which are not only vulnerable to climate change but also have the highest rates of deforestation in the whole world.

UN report - Livestock's Long Shadow

MEAT EATING IS A MAJOR CAUSE OF GLOBAL WARMING-Over 70% of Amazon rainforest is cut down for meat production.-Livestock produces MORE GREENHOUSE GASES than all WORLDWIDE TRANSPORTATION COMBINED.

"Livestock are one of the most significant contributors to today's most serious environmental problems. Urgent action is required to remedy the situation."-Dr. Henning Steinfeld, Chief of Livestock Information and Policy Branch, FAO of United Nations

Scientist says:

" WHY must we be reticent about recommending a diet which we know is safe and healthy? We, as scientists, can no longer take the atttitude that the public cannot benefit from information they are not ready for. I personally have great faith in the public. We must tell them that a diet of roots, stems, seeds, flowers, fruits and leaves is the healthiest diet and the only diet we can promote, endorse, and recommend." -Colin Campbell, PhD(Director of the Cornell-China-Oxford Project on Nutrition, Health and Environment)